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haphazard
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Aug 10, 2021, 9:05 AM
Post #1 of 10
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09 town & county 212,000 miles 3.8 motor My rear heater control isn’t working I replaced the whole unit and still don’t work Can someone tell me where the relay fuse is located ? It worked for a minute then stopped I’m thinking it could be a bad fuse or relay Thanks
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Hammer Time
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Aug 10, 2021, 9:45 AM
Post #2 of 10
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Re: Heater controls
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What specifically isn't working? Does it work from the front control? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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haphazard
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Aug 10, 2021, 11:04 AM
Post #3 of 10
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Re: Heater controls
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The front controls work fine, if the rear control that don’t work, blower motor isn’t working on any setting
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Hammer Time
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Aug 10, 2021, 11:09 AM
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Re: Heater controls
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Maybe you didn't understand my question. Can you control the rear blower from the front control? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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haphazard
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Aug 10, 2021, 11:24 AM
Post #5 of 10
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Re: Heater controls
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Yes, but there is a 2nd countrol for the rear, it’s below the front controls
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Hammer Time
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Aug 10, 2021, 11:28 AM
Post #6 of 10
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Re: Heater controls
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The rear control uses it's own module and sounds like where the problem is. The switch is built into it. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Aug 10, 2021, 11:29 AM)
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haphazard
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Aug 10, 2021, 11:34 AM
Post #7 of 10
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Re: Heater controls
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Is there a separate fuse or relay for it ? How do I go about fixing it ? I replaced the whole unit with another one and it worked for a minute, then stopped The whole heater controls, front and back sre on the same unit
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Hammer Time
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Aug 10, 2021, 11:42 AM
Post #8 of 10
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Re: Heater controls
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Yes, there is a relay and a fuse in the main power module under the hood. Here is the wiring diagram
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haphazard
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Aug 10, 2021, 11:53 AM
Post #9 of 10
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Re: Heater controls
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Is there a number for it in the fuse box ?
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Hammer Time
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Aug 10, 2021, 11:59 AM
Post #10 of 10
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Re: Heater controls
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The diagram gives you that info. It's fuse #J18 30A ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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